The couple's eight-year-old little girl Zahara reportedly suggested the 'World War Z' actor, 49, can't keep his hands off his 37-year-old fiancée - with whom he also has five other children, Maddox, 11, Pax, nine, Shiloh, six, and four-year-old twins Knox and Vivienne - when they're at home.

Brad's close friend and furniture business partner Frank Pollaro told Esquire magazine: ''Once I walked in and Angie was standing there and Zahara walked up and said, 'Daddy, you're not going to start making out with Mommy again, are you?' And it's like that.

''This is a guy who has tried not to do any sexy scenes with other women since he's met Angelina. He's crazy about her, and she's the same way about him.''

Frank also revealed that the couple are obsessed with their children.

He explained: ''No matter how hard he's working, if one of those kids runs by the window he'll get out of his chair and give them a kiss. And I don't think I've ever seen Angie without one of those children in her arms.''

Brad claims he has never been happier after fully supporting Angelina's decision to have a double mastectomy in February when she discovered she had an 87 per cent chance of developing breast cancer because she carries the BRCA1 gene mutation.

He said: ''I have very few friends. I have a handful of close friends and I have my family and I haven't known life to be any happier.

''I'm making things. I just haven't known life to be any happier.

''I always thought that if I wanted to do a family, I wanted to do it big. I wanted there to be chaos in the house ... there's constant chatter in our house, whether it's giggling or screaming or crying or banging.

''I love it. I love it. I love it. I hate it when they're gone. I hate it. Maybe it's nice to be in a hotel room for a day - 'Oh, nice, I can finally read a paper.' But then, by the next day, I miss that cacophony, all that life.''